Anti-Sticking Turning Milling Dimensional Chemical Resistant Bronze/Graphite/Carbon Filled PTFE Tube

Product Description

Product Description

High performance engineering plastic pipes are made of polytetrafluoroethylene (PTFE) material and filled with specific additives to enhance their performance according to customer requirements. This kind of pipe has excellent chemical resistance, high temperature resistance, low friction coefficient and good insulation performance, and is widely used in industrial, medical, electronic, automotive and other fields.
 

PTFE TUBE

1.Material:100% virgin PTFE,no recycle.
2.Certificate:ISO9001,MSDS,RoHs,REACH,FDA,Certificate of origin.
3.Own best performance,can be filled other material such as Bronze,Fiber glass,Carbon,Graphiteand so on.
4.Payment item:T/T,L/C,DP or others.
5.Price item: FOB,CIF,CFR and so on.
6.Delivery time: As your request,usually within 7days.
8.Free samples can be offered as your requirements.

Product description

SPECIFICATION

Item	Specification
	Outside diameter(mm)	Wall thickness (mm)	Length(mm)
Pressed Tube	1~25	0.1~2.5	As your requirement
Extruded Tube	12.4~213	1.5~15	As your requirement
Die Pressed Tube	30~2000	10~500	100~300

MAIN PROPERTIES

Our service

1. Your inquiry will be replied within 2 hours during working time, within 24hours when rest time.
2. Our working time is 7:30am-17:30pm, Monday to Saturday.
3. General samples time can be arranged within 2-5days.
4. Orders will be produced exactly as request and approved samples.
5. When mass production, we send photos to show the production line and confirm the estimate time again.
6. At the end of mass production, photos and samples will send to you for approval. You can arrange the inspection.
7. Before shipment, our QC will have inspection to make sure the quality
8. We always try best to ensure every order to delivery in time.

Payment Terms

1. T/T, Cash, L/C
2. 30% deposit, 70% balance before shipment.
3. Lead time: 15 days after received deposi for 2 tons.
4. Delivery way: By sea, By air, By EMS, DHL,UPS,TNT, FedEX.

Packing&Delivery
For sample:By EMS, DHL,UPS, TNT,FedEx
         Around 5-7 working days to arrive

For Bulk order

1. Qty of 2 tons within 15 days
2. Via sea
3. Delivery time: we finish production in 15 days for 2 tons
4. For 20 GP, may need around 30 days

Product Application

Company Profile

Chunhuan Group (Zhenjiang Chunhuan Sealing Group Co., Ltd.), established in 1985, is a leading manufacturer of fluoroplastic products, chemical semiconductor linings, and new energy sealing gaskets. The company primarily focuses on the research, development, and production of fluoroplastic series sealing products (for hydrogen energy and nuclear power applications) and chemical semiconductor linings. With subsidiaries in South Korea and Shanghai, the group has also established a joint venture with South Korea's Houcheng Group for semiconductor lining equipment. Main  production: PTFE  products, metal  seals  series, steel  lining  anti-corrosion series, engineering plastics series,rubber products series,it is the leading enterprise in the national fluoroplastics industry. The  company  supplies  more  than  300  varieties  of  PTFE  composite modified  materials,ranging  from standard  composite modified  materials (bronze,glass fiber,carbon,graphite,etc.) to  customized  solutions  to  meet different  production  needs  of customers.The  company  provides  flexible  quantity  and  fast  delivery service. The engineers have 35 years working experience in the field of PTFE,serving customers in more than 30 countries.

Our Advantages

Certifications

Packaging & Shipping

FAQ

Q1: Why are bronze, graphite, and carbon added simultaneously to this PTFE tube, and what are their respective functions?
A1: Bronze powder enhances thermal conductivity and compressive strength for heat dissipation and heavy loading; graphite provides self-lubrication and anti-sticking properties, reducing friction and preventing tool galling during machining; carbon (powder or short fiber) improves wear resistance and imparts electrical conductivity/anti-static performance. Together, they deliver easy machinability, low friction, wear resistance, and dimensional stability.

Q2: Where does the anti-sticking feature manifest, and what practical benefits does it bring?
A2: During turning and milling, chips do not adhere to the cutting tool, prolonging tool life and yielding smoother surfaces. In service (e.g., bushings or guide rings), it prevents adhesive wear or galling with mating parts, especially under low-speed heavy loads, intermittent motion, or poor lubrication conditions, reducing maintenance downtime.

Q3: How machinable is this tube? Can it be turned, milled, drilled, and tapped?
A3: Absolutely. The uniform filler dispersion and PTFE matrix provide excellent cutting characteristics, allowing turning, milling, drilling, tapping, chamfering, and other standard operations with minimal burrs or delamination. We recommend carbide tooling and proper cutting parameters for high precision and good surface finish.

Q4: What are the continuous and short-term maximum operating temperatures?
A4: Continuous service range is -200°C to +260°C. All fillers (bronze, graphite, carbon) remain stable within this range. Short-term exposure up to +300°C (a few hours) is possible, but long-term use should stay within +260°C to maintain mechanical integrity.

Q5: How resistant is it to strong acids, organic solvents, and chemicals? Do fillers affect chemical stability?
A5: The PTFE matrix retains outstanding chemical inertness, resisting almost all strong acids, strong alkalis, salt solutions, and organic solvents. Graphite and carbon are also corrosion-resistant; bronze may be attacked by strongly oxidizing acids, but is fully suitable for oils, water, mild acids/bases, and most industrial fluids. We can recommend a safe formulation for your specific media.

Q6: Is the tube conductive or anti-static? What is the typical surface resistivity range?
A6: Carbon filling provides anti-static/conductive properties, with surface resistivity adjustable from 10³ to 10^6 Ω (pure PTFE is >10^16 Ω). Bronze and graphite do not significantly affect conductivity. Please specify your target resistivity when ordering, and we will adjust the carbon content accordingly.

Q7: Is this product suitable for food or pharmaceutical industries? Does it have FDA certification?
A7: No. Filled PTFE containing bronze, graphite, or carbon does not meet FDA food-contact requirements and is not recommended for direct food, pharmaceutical, or drinking water contact. This product is designed for industrial machinery, chemical equipment, electronics manufacturing, and automation where wear resistance, anti-sticking, and anti-static properties are required.

Q8: How much mechanical improvement does this filled tube offer over pure PTFE in terms of strength, wear resistance, and dimensional stability?
A8: The synergistic effect of carbon fiber and bronze boosts compressive strength by over 50%, elastic modulus by 2~3 times, and wear resistance (abrasion tests) by 3~5 times, while significantly reducing high-temperature creep and improving dimensional stability - ideal for precision-fit bushings, guide sleeves, or seals.